CVE-2026-25776

CRITICALNVD 9.89.8—

9.8

Movable Type provided by Six Apart Ltd. contains a code injection vulnerability which may allow an attacker to execute arbitrary Perl script.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 20.7%
KEV: Not listed

Published

April 8, 2026

Last Modified

April 20, 2026

Advisory Details (3)

Auto-updated Apr 30, 2026

No patch confirmed yet.

generic

[重要] Movable Type 9.1.1 / 9.0.7 / 8.8.3 / 8.0.10、Movable Type Premium 9.1.1 / 9.0.7 / 2.15 の提供を開始（セキュリティアップデート） | Movable Type ニュース

https://www.sixapart.jp/movabletype/news/2026/04/08-1100.html

generic

MovableType.org – News:[Security Update] Movable Type 9.0.7, 8.8.3 and 8.0.10 Released

https://movabletype.org/news/2026/04/mt-907-released.html

generic

JVN#66473735: Multiple vulnerabilities in Movable Type

https://jvn.jp/en/jp/JVN66473735/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-94Improper Control of Generation of Code (Code Injection)

Data Freshness Timeline

(refreshed 17× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-24 16:59 UTCepss_batch
2026-05-23 15:21 UTCepss_batch
2026-05-22 21:16 UTCepss_batch

Frequently asked(5)

What is CVE-2026-25776?

CVE-2026-25776 is a critical vulnerability published on April 8, 2026. Movable Type provided by Six Apart Ltd. contains a code injection vulnerability which may allow an attacker to execute arbitrary Perl script.

When was CVE-2026-25776 disclosed?

CVE-2026-25776 was first published in the National Vulnerability Database on April 8, 2026, with the most recent update on April 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-25776 actively exploited?

CVE-2026-25776 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-25776?

CVE-2026-25776 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2026-25776?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-25776, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2026-25776

📅 Published

🔄 Last Modified

📋 Advisory Details (3)

[重要] Movable Type 9.1.1 / 9.0.7 / 8.8.3 / 8.0.10、Movable Type Premium 9.1.1 / 9.0.7 / 2.15 の提供を開始（セキュリティアップデート） | Movable Type ニュース

MovableType.org – News:[Security Update] Movable Type 9.0.7, 8.8.3 and 8.0.10 Released

JVN#66473735: Multiple vulnerabilities in Movable Type

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2026-25776?

🔗 Related CVEs(same CWE)

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Published

Last Modified

Advisory Details (3)

Frequently asked(5)

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